Qt forum is almost inaccessible

Since this morning, I have been able to access the forum only once at the time of this writing. The rest of the time I am getting the following "Application Error" message:

An error occurred in the application and your page could not be served. If you are the application owner, check your logs for details. You can do this from the Heroku CLI with the command.

However, if I use a private window, I can see the forum. But as soon as I am logging in, again, the application dies. I do not know how NodeBB manages that internally but I wonder if it tries to load all the data related to my account and chokes in the process.

Whether it's an issue with NodeBB or the Heroku machine that might need to get some more muscles is to be determined. Note that this is not the first that it happens to me but it was never that many times for so long in a day.